mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-04 06:11:55 +03:00
a03882245a
git-svn-id: svn://kolibrios.org@8327 a494cfbc-eb01-0410-851d-a64ba20cac60
124 lines
2.4 KiB
C
Executable File
124 lines
2.4 KiB
C
Executable File
#include "pxa255_TIMR.h"
|
|
#include "mem.h"
|
|
|
|
|
|
static void pxa255timrPrvRaiseLowerInts(Pxa255timr* timr){
|
|
|
|
pxa255icInt(timr->ic, PXA255_I_TIMR0, (timr->OSSR & 1) != 0);
|
|
pxa255icInt(timr->ic, PXA255_I_TIMR1, (timr->OSSR & 2) != 0);
|
|
pxa255icInt(timr->ic, PXA255_I_TIMR2, (timr->OSSR & 4) != 0);
|
|
pxa255icInt(timr->ic, PXA255_I_TIMR3, (timr->OSSR & 8) != 0);
|
|
}
|
|
|
|
static void pxa255timrPrvCheckMatch(Pxa255timr* timr, UInt8 idx){
|
|
|
|
UInt8 v = 1UL << idx;
|
|
|
|
if((timr->OSCR == timr->OSMR[idx]) && (timr->OIER & v)){
|
|
timr->OSSR |= v;
|
|
}
|
|
}
|
|
|
|
static void pxa255timrPrvUpdate(Pxa255timr* timr){
|
|
|
|
pxa255timrPrvCheckMatch(timr, 0);
|
|
pxa255timrPrvCheckMatch(timr, 1);
|
|
pxa255timrPrvCheckMatch(timr, 2);
|
|
pxa255timrPrvCheckMatch(timr, 3);
|
|
}
|
|
|
|
static Boolean pxa255timrPrvMemAccessF(void* userData, UInt32 pa, UInt8 size, Boolean write, void* buf){
|
|
|
|
Pxa255timr* timr = userData;
|
|
UInt32 val = 0;
|
|
|
|
if(size != 4) {
|
|
err_str(__FILE__ ": Unexpected ");
|
|
// err_str(write ? "write" : "read");
|
|
// err_str(" of ");
|
|
// err_dec(size);
|
|
// err_str(" bytes to 0x");
|
|
// err_hex(pa);
|
|
// err_str("\r\n");
|
|
return true; //we do not support non-word accesses
|
|
}
|
|
|
|
pa = (pa - PXA255_TIMR_BASE) >> 2;
|
|
|
|
if(write){
|
|
val = *(UInt32*)buf;
|
|
|
|
switch(pa){
|
|
case 0:
|
|
case 1:
|
|
case 2:
|
|
case 3:
|
|
timr->OSMR[pa] = val;
|
|
break;
|
|
|
|
case 4:
|
|
timr->OSCR = val;
|
|
break;
|
|
|
|
case 5:
|
|
timr->OSSR = timr->OSSR &~ val;
|
|
pxa255timrPrvRaiseLowerInts(timr);
|
|
break;
|
|
|
|
case 6:
|
|
timr->OWER = val;
|
|
break;
|
|
|
|
case 7:
|
|
timr->OIER = val;
|
|
pxa255timrPrvUpdate(timr);
|
|
pxa255timrPrvRaiseLowerInts(timr);
|
|
break;
|
|
}
|
|
}
|
|
else{
|
|
switch(pa){
|
|
case 0:
|
|
case 1:
|
|
case 2:
|
|
case 3:
|
|
val = timr->OSMR[pa];
|
|
break;
|
|
|
|
case 4:
|
|
val = timr->OSCR;
|
|
break;
|
|
|
|
case 5:
|
|
val = timr->OSSR;
|
|
break;
|
|
|
|
case 6:
|
|
val = timr->OWER;
|
|
break;
|
|
|
|
case 7:
|
|
val = timr->OIER;
|
|
break;
|
|
}
|
|
*(UInt32*)buf = val;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
Boolean pxa255timrInit(Pxa255timr* timr, ArmMem* physMem, Pxa255ic* ic){
|
|
|
|
__mem_zero(timr, sizeof(Pxa255timr));
|
|
timr->ic = ic;
|
|
return memRegionAdd(physMem, PXA255_TIMR_BASE, PXA255_TIMR_SIZE, pxa255timrPrvMemAccessF, timr);
|
|
}
|
|
|
|
void pxa255timrTick(Pxa255timr* timr){
|
|
|
|
timr->OSCR++;
|
|
pxa255timrPrvUpdate(timr);
|
|
pxa255timrPrvRaiseLowerInts(timr);
|
|
}
|